15/x-7

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Solution for 15/x-7 equation: 


D( x )

x = 0

x = 0

x = 0

x in (-oo:0) U (0:+oo)

15/x-7 = 0

15*x^-1 = 7 // : 15

x^-1 = 7/15

-1 < 0

1/(x^1) = 7/15 // * x^1

1 = 7/15*x^1 // : 7/15

15/7 = x^1

x = 15/7

x = 15/7

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